The assent of the Parliament of the United Kingdom is hereby given to the adoption by Her Majesty, for use in relation to the United Kingdom and all other the territories for whose foreign relations Her Government in the United Kingdom is responsible, of such style and titles as Her Majesty may think fit having regard to the said agreement, in lieu of the style and titles at present appertaining to the Crown, and to the issue by Her for that purpose of Her Royal Proclamation under the Great Seal of the Realm.